现有(DS)=2000H ,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=0B7H,(21203H)=65H,说明下列指令执行后AX寄存器的内容。   (1)MOV  AX,1200H  (2)MOV  AX,BX   (3)MOV AX,[1200H]   (4)MOV  AX,[BX]  (5)MOV  AX,1100H[BX]   (6)MOV  AX,[BX][SI]   (7)MOV  AX,1100H[BX][SI]

现有(DS)=2000H ,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=0B7H,(21203H)=65H,说明下列指令执行后AX寄存器的内容。   (1)MOV  AX,1200H  (2)MOV  AX,BX   (3)MOV AX,[1200H]   (4)MOV  AX,[BX]  (5)MOV  AX,1100H[BX]   (6)MOV  AX,[BX][SI]   (7)MOV  AX,1100H[BX][SI]


相关考题:

阅读以下有关80X86汇编语言的叙述,回答问题1和问题2,将解答填入对应栏内。【说明】本题由两部分组成,第一部分为计算AX寄存器的值,第二部分为判错题。已知DS=2000H,BX=0100H,SI=0002H,存储单元[20100H]到[20103H]依次存放12H、34H、56H、78H,[21200H]~[21203H]依次存放2AH、4CH、B7H、65H,说明下列每一条指令执行后AX寄存器的内容。(1)MOV AX,[1200H](2)MOV AX,[BX](3)MOV AX,[BX+1100H](4)MOV AX,[BX+SI](5)MOV AX,[BX][SI+1100H]

指出下列指令中哪些是错误的,错在什么地方。  (1)MOV DL,AX  (2)MOV 8650H,AX  (3)MOV DS,0200H  (4)MOV [BX],[1200H]  (5)MOV IP,0FFH  (6)MOV [BX+SI+3],IP  (7)MOV AX,[BX][BP]  (8)MOV AL,ES:[BP]  (9)MOV DL,[SI][DI]  (10)MOV AX,OFFSET 0A20H  (11)MOV AL,OFFSET TABLE  (12)XCHG AL,50H  (13)IN BL,05H  (14)OUT AL,0FFEH

指出下列指令的错误(1)MOV.AH,BX(2)ADD.15H,BX(3)MOV.CS,AX(4)MOV.AX,[SI][DI](5)MOV.BYTEPTR[BX],1000

已知:DS=2000H,BX=0300H,SI=0002H,(20300H)=12H,(20301)=34H,(20302H)=56H,(20303H)=78H,(21400H)=2AH,(21401H)=4CH,(21402H)=B7H,(21403H)=65H 试说明下列指令执行完后AX寄存器的内容:MOV  AX,1400H

设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV AX,1100H[BX][SI]指令单独执行后,AX为多少?

设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV [BX][SI],AL指令单独执行后,[20102H]为多少?

设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV DX,1100H[BX]指令单独执行后,DX为多少?

分别说明下列指令的源操作数和目的操作数各采用什么寻址方式。  (1)MOV AX,2408H  (2)MOV CL,0FFH  (3)MOV BX,[SI]  (4)MOV 5[BX],BL  (5)MOV [BP+100H],AX  (6)MOV [BX+DI],’$’  (7)MOV DX,ES:[BX+SI]  (8)MOV VAL[BP+DI],DX  (9)IN AL,05H  (10)MOV DS,AX

已知:DS=1000H,BX=0200H,SI=02H,内存10200H~10205H 单元的内容分别为10H, 2AH,3CH,46H,59H,6BH。下列每条指令执行完后AX 寄存器的内容各是什么?  (1)MOV AX,0200H  (2)MOV AX,[200H]  (3)MOV AX,BX  (4)MOV AX,3[BX]  (5)MOV AX,[BX+SI]  (6)MOV AX,2[BX+SI]

分析下列指令的正误,对于错误的指令要说明原因并加以改正。 (1) MOV AH,BX (2) MOV [BX],[SI] (3) MOV AX,[SI][DI] (4) MOV MYDAT[BX][SI],ES:AX (5) MOV BYTE PTR[BX],1000 (6) MOV BX,OFFSET MAYDAT[SI] (7) MOV CS,AX (8) MOV DS,BP

设(DS)=2000H,(ES)=2100H,(SS)=1500H,(SI)=00A0H,(BX)=0100H,(BP)=0010H,数据变量VAL的偏移地址为0050H,请指出下列指令的源操作数字段是什么寻址方式?它的物理地址是多少? (1) MOV AX,21H (2) MOV AX,BX (3) MOV AX,[1000H] (4) MOV AX,VAL (5) MOV AX,[BX] (6) MOV AX,ES:[BX] (7) MOV AX,[BP] (8) MOV AX,[SI] (9) MOV AX,[BX+10] (10) MOV AX,VAL[BX] (11) MOV AX,[BX][SI] (12) MOV AX,VAL[BX][SI]

设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV AX,1800H指令单独执行后,AX为多少?

设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV BX,[1200H]指令单独执行后,BX为多少?

指出下列指令的错误(1)SUB AH,BX(2)ADD OAH,BL(3)MOV C3,AX(4)MOV AX,[SI][DI](5)MOV BYTEPTR[BX],999

下列指令中,源操作数的寻址方式中,()属于寄存器相对寻址。A、MOV AX,[4000H]B、MOV [BX],AXC、SUB AX,2000HD、MOV AX,[SI+12H]E、MOV CX,[BX]F、MOV AX,[SI+BX+10H]

下列指令中,源操作数的寻址方式中,()属于寄存器寻址。A、MOV AX,[4000H]B、MOV [BX],AXC、SUB AX,2000HD、MOV AX,[SI+12H]E、MOV CX,[BX]F、MOV AX,[SI+BX+10H]

已知:DS=2000H,BX=0300H,SI=0002H,(20300H)=12H,(20301)=34H,(20302H)=56H,(20303H)=78H,(21400H)=2AH,(21401H)=4CH,(21402H)=B7H,(21403H)=65H 试说明下列指令执行完后AX寄存器的内容:MOV  AX,[BX]

现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=0B7H,(21203H)=65H,说明下列指令执行后AX寄存器的内容。 (1)MOVAX,1200H (2)MOVAX,BX (3)MOVAX,[1200H] (4)MOVAX,[BX] (5)MOVAX,1100H[BX] (6)MOVAX,[BX][SI] (7)MOVAX,1100H[BX][SI]

现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,1100[BX]。

现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,BX。

现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,1100[BX][SI]。

现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,[1200H]。

完成同指令XCHG AX,BX相同功能的指令或指令序列是()。A、MOV AX,BXB、MOV BX,AXC、PUSH AX POP BXD、MOV CX,AX MOV AX,BX MOV BX,CX

设DS=1000H,ES=2000H,SS=3500H,SI=00A0H,DI=0024H,BX=0100H,BP=0200H, 数据段中变量名为VAL 的偏移地址值为0030H,试说明下列源操作数字段的寻址方式是什 么?物理地址值是多少?  (1)MOV AX,[100H]  (2)MOV AX,VAL  (3)MOV AX,[BX]  (4)MOV AX,ES:[BX]  (5)MOV AX,[SI]  (6)MOV AX,[BX+10H] (7)MOV AX,[BP]  (8)MOV AX,VAL[BP][SI]  (9)MOV AX,VAL[BX][DI]  (10)MOV AX,[BP][DI]

问答题指出下列指令的错误(1)MOV.AH,BX(2)ADD.15H,BX(3)MOV.CS,AX(4)MOV.AX,[SI][DI](5)MOV.BYTEPTR[BX],1000

问答题现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,[1200H]。

问答题现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=B7H,(21203H)=65H,试说明下列各条指令执行完后AX寄存器的内容。MOV AX,1100[BX][SI]。